package com.kelvin.oocl.printer;

import java.io.File;
import java.io.IOException;
import java.util.TreeSet;

import com.kelvin.oocl.pojo.Customer;

public interface FormatPrinter {
	
	public String print(TreeSet<Customer> customers,String format);
	
	public String createXmlFile(TreeSet<Customer> customers,File target) throws IOException;
}
